Home / 141,782.37-195,659.67-78,119.61

Finding the Fourth Proportional to 141,782.37, 195,659.67 and 78,119.61

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Solution

The fourth proportional to 141,782.37, 195,659.67 and 78,119.61 is: 107,805.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,782.37 : 195,659.67 = 78,119.61 : x
  2. Step 2: Convert to fraction form
    141,782.37/195,659.67 = 78,119.61/x
  3. Step 3: Cross multiply
    141,782.37x = 195,659.67 × 78,119.61
  4. Step 4: Simplify right side
    141,782.37x = 15,284,857,113.13
  5. Step 5: Solve for x
    x = 15,284,857,113.13/141,782.37
  6. Step 6: Final answer
    x = 107,805.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.